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n. pl. spir·u·lae (-lē′)
A small squid of the genus Spirula, having a spirally coiled, chambered, internal shell often found on beaches.
[Late Latin spīrula, twisted cake, diminutive of Latin spīra, coil; see spire2.]
(Animals) a tropical cephalopod mollusc, Spirula peronii, having prominent eyes, short arms, and a small flattened spirally coiled internal shell: order Decapoda (cuttlefish and squids)
[C19: via New Latin from Late Latin: a small twisted cake, from Latin spīra a coil]
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|Noun||1.||spirula - a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral|
decapod - cephalopods having eight short tentacles plus two long ones
genus Spirula - genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites